/usr/share/pyshared/ is in python-zope.app.schema 3.5.0-0ubuntu5.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/zope/
/usr/share/pyshared/zope.app.schema-3.5.0-nspkg.pth
/usr/share/pyshared/zope.app.schema-3.5.0.egg-info/
/usr/share/pyshared/zope.app.schema-3.5.0.egg-info/PKG-INFO
/usr/share/pyshared/zope.app.schema-3.5.0.egg-info/SOURCES.txt
/usr/share/pyshared/zope.app.schema-3.5.0.egg-info/dependency_links.txt
/usr/share/pyshared/zope.app.schema-3.5.0.egg-info/namespace_packages.txt
/usr/share/pyshared/zope.app.schema-3.5.0.egg-info/not-zip-safe
/usr/share/pyshared/zope.app.schema-3.5.0.egg-info/requires.txt
/usr/share/pyshared/zope.app.schema-3.5.0.egg-info/top_level.txt
/usr/share/pyshared/zope/app/
/usr/share/pyshared/zope/app/schema/
/usr/share/pyshared/zope/app/schema/README.txt
/usr/share/pyshared/zope/app/schema/SETUP.cfg
/usr/share/pyshared/zope/app/schema/__init__.py
/usr/share/pyshared/zope/app/schema/configure.zcml
/usr/share/pyshared/zope/app/schema/tests.py
/usr/share/pyshared/zope/app/schema/vocabulary.py
/usr/share/pyshared/zope/app/schema/zope.app.schema-configure.zcml